Instantly detect and analyze your web browser information including browser name, version, rendering engine, operating system, device type, screen resolution, and system capabilities. Free browser detection tool providing comprehensive details about your browsing environment for technical support, compatibility testing, and system analysis.
A "What Is My Browser" tool is a web-based utility that automatically detects and displays comprehensive information about your web browser, operating system, device, and browsing environment. When you visit the tool, it instantly analyzes your system using client-side JavaScript and server-side detection to identify your browser name and version (Chrome, Firefox, Safari, Edge, Opera, Brave, etc.), browser rendering engine (Blink, Gecko, WebKit, Trident) and engine version, operating system platform (Windows, macOS, Linux, Android, iOS, ChromeOS), OS version and architecture (32-bit vs 64-bit), device type classification (desktop, laptop, tablet, smartphone), screen resolution and display dimensions, pixel density and device pixel ratio, and browser capabilities and features. Browser detection is essential for multiple use cases in modern web development and usage. Users rely on browser information when seeking technical support for website issues, as support teams require accurate browser details to diagnose problems and provide solutions. Website compatibility is another critical factor—knowing your browser version helps determine if you can access certain web applications, streaming services, or online tools that require specific browser capabilities or minimum versions. Security is paramount: outdated browsers contain known vulnerabilities that hackers actively exploit, making it crucial to identify if your browser needs updating to protect against security threats, phishing attacks, and malware. Web developers and testers use browser detection tools extensively during quality assurance and cross-browser testing. Since websites render differently across browsers due to varying CSS support, JavaScript implementations, and HTML5 feature availability, developers must verify functionality across multiple browser-device combinations. Browser detection helps developers reproduce user-reported bugs, test responsive design breakpoints, verify polyfill requirements for legacy browsers, and ensure progressive enhancement strategies work correctly. System administrators and IT professionals utilize browser information to enforce corporate browser policies, audit employee systems for security compliance, and provide appropriate technical support based on user environments. Our What Is My Browser tool provides instant, accurate detection of your complete browsing environment with detailed technical specifications, real-time data collection from your current session, and comprehensive system capabilities analysis. The tool displays not just basic browser name, but deep technical details including user agent string analysis, browser engine identification, JavaScript and cookie support verification, screen and viewport dimensions, color depth and pixel ratio, timezone and language settings, network status and IP information, and touch input detection. Whether troubleshooting website issues, verifying browser compatibility, checking for security updates, or performing developer testing, this tool delivers all the browser information you need in an instant, user-friendly format.
Visit the What Is My Browser tool page in any web browser.
The tool automatically detects your browser information immediately upon page load.
Review browser details: name (Chrome, Firefox, Safari, Edge, etc.) and version number.
Check rendering engine: Blink (Chrome/Edge), Gecko (Firefox), WebKit (Safari).
Verify operating system: Windows, macOS, Linux, Android, iOS with version.
Check device classification: desktop, mobile, or tablet detection.
Review screen information: resolution, color depth, pixel ratio.
Verify browser capabilities: cookies enabled, JavaScript support, Java enabled.
Check language settings: primary language and all accepted languages.
Review network information: IP address, user agent string.
Note timezone and geolocation (if permissions granted).
Copy detected information for technical support tickets if needed.
Compare detected version against latest releases to check for updates.
Use this tool when reporting website bugs to provide accurate environment details.
Instantly identify your exact browser and version
Detect operating system and device information
Verify browser is up-to-date for security
Essential for technical support requests
Check browser compatibility before using web apps
Identify browser rendering engine details
Test screen resolution and display properties
Verify browser capabilities (cookies, JavaScript)
Useful for web developers during testing
Completely free with no registration required
No installation or downloads needed
Privacy-focused with no data storage
| Browser | Version Pattern | Rendering Engine | Common Platforms |
|---|---|---|---|
| Google Chrome | 120.0.0.0+ | Blink | Windows, macOS, Linux, Android |
| Mozilla Firefox | 121.0+ | Gecko | Windows, macOS, Linux |
| Apple Safari | 17.0+ | WebKit | macOS, iOS, iPadOS |
| Microsoft Edge | 120.0.0.0+ | Blink | Windows, macOS |
| Opera | 105.0+ | Blink | Windows, macOS, Linux |
| Brave | 1.60.0+ | Blink | Windows, macOS, Linux |
Your browser name identifies the software you're using (Chrome, Firefox, Safari, Edge, Opera, Brave, etc.), while the version number indicates the specific release. Modern browsers use rapid release cycles: Chrome and Edge update approximately every 4 weeks with new features and security patches, Firefox releases monthly with major updates, Safari updates with macOS/iOS system updates (typically 2-3 times yearly), and Opera follows Chrome's release cycle closely. Version numbers matter because newer versions include security fixes for known vulnerabilities, performance improvements and optimizations, support for latest web standards and features, and bug fixes for rendering issues. Always keep your browser updated to the latest version for optimal security and compatibility.
Browser rendering engines (also called layout engines or browser engines) are responsible for displaying web content by interpreting HTML, CSS, and JavaScript. Major engines include: Blink (used by Chrome, Edge, Opera, Brave, Vivaldi) - developed by Google, forked from WebKit in 2013, powers most modern browsers, excellent standards support; Gecko (used by Firefox) - developed by Mozilla, independent engine ensuring browser diversity, strong privacy focus; WebKit (used by Safari) - developed by Apple, required for all iOS browsers by Apple policy, optimized for Apple devices; Trident/EdgeHTML (legacy) - older Edge and Internet Explorer, now deprecated in favor of Blink. Engine matters for: rendering performance and speed, CSS feature support, JavaScript execution, web standard implementation. Most sites now target Blink-based browsers due to market dominance, but Firefox's Gecko remains important for web diversity.
Operating system information includes your platform (Windows, macOS, Linux, Android, iOS, ChromeOS), version (Windows 11, macOS Sonoma, Android 14, iOS 17), and architecture (32-bit vs 64-bit). This information helps: determine browser compatibility (some features are OS-specific), identify available system fonts for web typography, optimize performance for platform capabilities, and troubleshoot platform-specific rendering issues. OS version matters because newer versions support modern security features, provide better browser performance, enable latest web APIs, and receive active security updates. For example, Windows 10+ supports modern web features better than Windows 7, macOS 11+ required for latest Safari features, and iOS 15+ needed for modern PWA capabilities.
Device detection classifies your hardware as desktop, laptop, tablet, or smartphone based on screen size, touch capability, and user agent indicators. Screen information includes resolution (1920×1080, 2560×1440, etc.), viewport size (visible browser area), pixel ratio (1x for standard displays, 2x-3x for Retina/high-DPI), and color depth (typically 24-bit for 16.7 million colors). This information is crucial for: responsive web design (sites adapt layouts for different screens), image optimization (serving appropriate resolution images), touch vs mouse interface decisions, and viewport-based calculations. High pixel ratio displays (Retina, 4K) need higher resolution assets to appear crisp, while mobile devices prioritize smaller file sizes for faster loading over cellular connections.
Browser capabilities include: Cookies enabled (required for login sessions, preferences, shopping carts), JavaScript enabled (essential for modern interactive websites), Java support (largely deprecated due to security issues), local storage availability (offline data storage for web apps), service worker support (enables PWAs and offline functionality), WebGL support (3D graphics in browser), WebRTC support (real-time communication, video calls), geolocation API (location-based services), and notification API (push notifications). Feature detection helps websites: provide appropriate functionality for browser capabilities, implement graceful degradation for unsupported features, show upgrade prompts when necessary features are missing, and optimize user experience based on available APIs. Modern web development uses feature detection rather than browser detection for more reliable compatibility handling.
Browser detection involves collecting system information, raising privacy considerations. Privacy-conscious approaches: minimize data collection to necessary information only, don't store or transmit detection data unnecessarily, respect Do Not Track (DNT) headers, and avoid browser fingerprinting for tracking purposes. Security best practices: keep browser updated for latest security patches, enable automatic updates, use security-focused browsers (Firefox, Brave) for enhanced privacy, consider privacy extensions (uBlock Origin, Privacy Badger), and be aware that outdated browsers have known exploits actively targeted by attackers. Browser fingerprinting combines multiple detection points (user agent, screen resolution, fonts, canvas, WebGL) to create unique identifiers even without cookies. While legitimate for fraud prevention, it can be used for invasive tracking. Privacy-focused browsers (Brave, Firefox with Enhanced Tracking Protection, Tor) implement anti-fingerprinting measures to protect user privacy.
A: This comprehensive browser detection tool displays detailed information about your web browsing environment including: Browser name and version (Chrome, Firefox, Safari, Edge, Opera, etc.), browser rendering engine and version (Blink, Gecko, WebKit), operating system and version (Windows, macOS, Linux, Android, iOS), device type and specifications (desktop, mobile, tablet), screen resolution and pixel density, color depth and pixel ratio, browser capabilities (cookies, JavaScript, Java), language settings and timezone, network information including IP address, touch support detection, and online/offline status. This data helps developers test compatibility, troubleshoot issues, and understand user environments.
A: Knowing your browser information is essential for several reasons: Technical support: When reporting website issues, support teams need your browser details to reproduce problems and provide accurate solutions. Compatibility checking: Certain websites and web applications require specific browsers or minimum versions to function properly. Security updates: Outdated browsers have security vulnerabilities. Knowing your version helps ensure you're protected with latest patches. Feature availability: Modern web features (WebGL, WebRTC, Service Workers) require specific browser versions. Developer testing: Web developers need to verify how sites appear across different browsers and operating systems. Extension compatibility: Browser extensions and plugins often have browser-specific requirements. Performance optimization: Some browsers handle certain tasks better than others (video streaming, gaming, complex web apps).
A: Identify outdated browsers through multiple indicators: Version comparison: Check your detected version against the latest release on official browser websites. Chrome latest: chrome.google.com/browser, Firefox latest: mozilla.org/firefox, Safari updates: through macOS/iOS updates, Edge latest: microsoft.com/edge. Security warnings: Modern websites display warnings for unsupported browsers. Missing features: If websites mention 'upgrade browser' or features don't work, you're likely outdated. Update frequency: Chrome/Edge update every 4 weeks, Firefox monthly, Safari with OS updates. Auto-update settings: Most browsers auto-update when enabled. Check browser settings under 'About' section to verify. Security risks of outdated browsers: Vulnerability to malware and phishing attacks, no protection against latest exploits, missing security patches and certificates, compatibility issues with modern websites. Always keep browsers updated for security and performance.
A: A user agent string is a text identifier that browsers send with every web request, containing encoded information about the browser, operating system, and device. Why it matters: Server-side detection: Websites use user agent strings to serve browser-appropriate content (mobile vs desktop layouts, compatible video formats, optimized resources). Analytics tracking: Website owners analyze user agents to understand audience browser distribution, identify legacy browser users, and track mobile vs desktop traffic. Bot detection: User agents help identify legitimate browsers vs automated bots/scrapers. Content delivery: CDNs use user agents to optimize content delivery based on client capabilities. However, user agent strings have limitations: Can be spoofed/modified by users or extensions, increasingly unreliable for feature detection (use capability testing instead), privacy concerns (fingerprinting), and deprecated features being removed. Modern web development favors feature detection over user agent sniffing, but user agents remain important for analytics and debugging.
A: Browser detection uses multiple technical approaches: Client-side detection: JavaScript navigator object properties (navigator.userAgent, navigator.appName, navigator.appVersion, navigator.platform), feature detection APIs (window.chrome, window.opr, document.documentMode for IE), rendering engine detection (CSS vendor prefixes, specific DOM properties). Server-side detection: HTTP User-Agent header parsing, Accept headers analysis, client hints (newer standard), IP geolocation. Detection reliability order: 1. Feature detection (most reliable - test if feature exists). 2. Client-side JavaScript APIs (good reliability). 3. User-Agent string parsing (least reliable - can be spoofed). Best practices for developers: Never assume browser from user agent alone, use feature detection for critical functionality (if ('serviceWorker' in navigator)), use user agent for analytics only, implement graceful degradation for unsupported features, test across real devices, not just user agent simulation. Browser fingerprinting combines multiple detection methods for unique identification but raises privacy concerns.
A: Yes, browser information can be modified through several methods: Browser extensions: User-Agent Switcher extensions (Chrome, Firefox), privacy-focused extensions (Privacy Badger, uBlock Origin), anti-fingerprinting tools (Canvas Defender). Built-in features: Private/Incognito mode (limited fingerprinting), Brave browser built-in fingerprinting protection, Firefox Enhanced Tracking Protection, Safari Intelligent Tracking Prevention. Developer tools: Browser DevTools allow user agent override for testing (F12 > Network Conditions > User Agent). VPN/Proxy services: Can mask IP address but not browser fingerprint. Limitations and considerations: Changing user agent doesn't hide all fingerprints (screen resolution, fonts, canvas fingerprinting, WebGL fingerprinting still detectable), some websites block modified user agents, may break website functionality, privacy browsers (Tor, Brave) provide better comprehensive protection. Legitimate uses: Testing website compatibility, accessing mobile site versions, developer testing. Avoid: Bypassing content restrictions (may violate terms of service), hiding malicious activity.